Bottom level tank sampler



Filed March 29, 1952 /A//f/Vme. www ma/m,

Irfan/fx Patented Apr. 6, `19'4l UNITED STATES qPATENT OFFICE 2,674,129 BOTTOM LEVEL TANK SAMPLER Murray D. carmen, Wilmington, Calif. iipl'ieatio Mar-1i 29, 1952, Serin No. 279,299

4 Claims.

is to determine if water is present in the bottom of these various containers.

An object of my invention is to provide a novel bottom level tank sampler which is mounted on the lower end of a tube, which can be inserted into the tank or other container'.v This sampler is so constructed that it will take a sample only :from the exact bottom of the tank or container. Another object of my invention is to provide a novel tank sampler of the character stated which is moved to either open or closed position by exerting pressure or relieving pressure upon the tube which mounts the tank sampler.

A feature of my invention is to provide a novel tank sampler which will take a sample from the exact bottom or" a, tank or container, and which can be used to dispose this sample in a small necked bottle or glass container usually used to store these samples.

Still another object of my invention is to provide a novel tank sampler of the character stated, which is simple in construction, inexpensive to manufacture, and will not create a spark in the tank or container, and further, which is small and compact so that it can be easily handled by the user.

Other objects, advantages and features of invention may appear from the accompanying drawing, the subjoined detailed description and the appended claims.

In the drawing:

Figure 1 is a side elevation of my tank sampler mounted on a tube.

Figure 2 is a bottom plan view of the tank sampler.

Figure 3 is a fragmentary longitudinal sectional view of the sampler in loaded or closed position.

Figure 4 is a view similar to Figure 3 but showing the sampler in open position to either charge or discharge.

Referring more particularly to the drawing, the numeral I indicates a, tank, or container, and the numeral 2 the exact bottom of that tank. The tank, or container, may be filled with a petroleum product and there is usually a. quantity of water CIK below the petroleum product, 'and it is desirable and necessary to determine if such a water layer is present, and also the approximate amount of' A sampler 4 is mounted on the lower end of the` tube 3 and such sampler consists of a body 5 which is provided with thread 6 at the upper end which screw into the bottom of the tube. A tubular member 'l is slidably mounted in the bore t of the body 5. This tubular member includes an integral head 9 at the lower end and the head is formed with a transverse groove iii. A drilled passage, or duct, il, extends vertically through the tubular member 1 and the lower end of this duct opens into the groove iii substantially as shown. A transverse port l2 adjacent the upper end of the tubular member l also opens into the duct il, and serves as an ingress and egress port for the fluid, as will be further described.

A counterbore i3 in the body 5 extends upwardly from the bottom of the body and accommodates a spring it, which bears against the top of the head e and urges the tubular member l downwardly to its closed position. A disc valve i5 is mounted on 'the upper end of the tubular member 1 and is secured in position by the nut I6 which screws onto the top of the tube and against the valve. The spring it thus presses the valve I 5 against the top oi the body 5, and in this position the port i2 is below the top of the body 5, thereby closing the duct li and preventing any fluid from moving into or out of the tube 3.

By exerting pressure on the tube 3, the head 2 is pushed upwardly into the body against the tension of the spring iii, thus moving the port i2 above the top of the body 5 and permitting fluid to ow into or out of the tube 3. This position is shown in Figure d. It will also be noted that the head s can be placed iiat against the bottom 2 of the tank, or container, and fluid will still flow into the duct il, due to the transverse groove it. This will be evident from Figure l. By merely releasing downward pressure on the tube 3, the spring it will close the valve thus trapping uid in the tube 3 until the tube is withdrawn from the tank or container. rlinen to release the sample from the tube 3 it is only necessary to again insert the head into the narrow neck of a sample bottle and by pushing downwardly on the tube 3 the valve I 5 is again opened and fluid ows through the ports l2 and the duct Il and thence into the sample bottle.

The head 9 is limited in its upper movement into the body 5 by engagement with a shoulder l1 in the body 5. The downward movement of the head 9 is, of course, limited by engagement of the valve disc I5 against the top of the body 5.

Having described my invention, I claim:

1. A tank sampler comprising a body, a tube, means securing the body to one end of said tube, a tubular member slidably mounted in said body, said tubular member having a duct extending longitudinally therethrough, a valve on the upper end of the tubular member seating on the top of the body, said duct extending from below the valve to the bottom of. the tubular member, and spring means engaging the tubular member and the body and pressing the tubular member downwardly to seat said valve.

2. A tank sampler comprising a body, a tube, means securing the body to one end of said tube, a tubular member slidably mounted in said body, said tubular member having a duct extending longitudinally therethrough and a transverse groove in its bottom into which the duct extends, a valve on the upper end of the tubular member seating on the top of the body, said duct extending from below the valve to the bottom of the tubular member, and spring means engaging the tubular member and the body and pressing the tubular member downwardly to seat said valve.

3. A tank sampler comprising a body, a tube,

4 means securing the body to one end of said tube, a tubular member vertically slidable in said body. a valve on the upper end of the tubular member seating on the top of the body, said tubular member having a transversely extending port therein below the valve and having a duct extending from the port to the bottom of the tubular member, and spring means engaging the tubular member and the body and pressing the tubular memberv downwardly to seat said valve.

4. A tank sampler comprising a, body, a tube, means securing the body to one end of said tube, a tubular member vertically slidable in said body, a valve on the upper end or" the tubular member seating on the top of the body, said tubular member having a transversely extending port therein below the valve and a duct extending from the port to the bottom of the tubular member, and said tubular member having a transverse groove in its bottom, the duct opening into the groove, and a spring positioned in the body, said spring engaging the tubular member and the body to press the tubular member downwardly and seat the valve.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,039,816 Samons Oct. 1, 1912 2,544,262 Hall Mar. 6, 1951 2,593,830 'Baker Apr. 22, 1952 FOREIGN PATENTS Number Country Date 710,991 France June 16, 1931 

